Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

These two delightful animal-shaped buildings host a visitor center and wool shop.

Highly spherical boulders on the shores of New Zealand.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Wonderfully preserved Victorian factory, complete with a preserved steam powered engine house.

A sweet symbol marks the place where torturous executions were once carried out.

Protecting the dead from opportunistic body snatchers.

A scattered trail of street art adds a pop of color to the city's stark structures.

The curios of pharmacist and collector Henry Wellcome.

This historic black and white monastery is one of Bulgaria's architectural jewels.

"Holy Wisdom" overlooks the city that became its namesake.

Eastern Bloc nostalgia, anybody?

Sofia's legislative center is continuously reinventing itself.

A striking symbol of the Bulgarian capital.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

A vast Communist-era exhibition space in the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

A community's effort restores the historical Maryhill Burgh Hall.